Based on the celebrated YZ125 motocrosser, the YZ125X is optimised for the unique demands of enduro and cross country racing.
The powerful Yamaha Power Valve System (YPVS) equipped 125cc two-stroke engine is mated to a six-speed transmission for the ultimate cross country powerplant. An ultra-lightweight aluminium semi-double cradle frame is engineered to provide competition-ready handling character and composure.
It comes paired with best-in-class Speed Sensitive KYB® spring-type front fork and high performance KYB® long-travel rear shock, both fully adjustable and tuned for the specific demands of cross country racing.
Features
2 stroke power tuned for off road
The YZ125's advanced, liquid-cooled YPVS-equipped 125cc two-stroke engine provides impressive acceleration, thrilling mid- to high-rpm power, along with supreme usability.
YZ based frame
A race-proven, highly developed aluminium semi-double cradle frame is engineered to provide the perfect balance of rigidity and flex for competition-ready handling character and composure. Removable aluminium rear subframe is constructed of square-section tubing for reduced weight.
Cross-country features
The YZ125X comes equipped with an 18-inch rear wheel, standard side stand, sealed O-ring chain, reserve fuel petcock, lightweight bar pad, headlight and scraper between the fork's dust and oil seal, all adding up to exceptional off-road performance.
Enduro ergonomics
A racy ‘gripper’ type seat and narrow fuel tank combine with a tapered aluminium handlebar and adjustable mounts to create greater freedom of movement and more comfortable ergonomics for riders.
Enduro-specific wheels and tyres
Cross-country-spec Dunlop Geomax MX33 tyres front and rear are ready to head straight to the races. An 18-inch rear tyre has a taller sidewall to improve comfort and reduce pinch flats.
Industry-leading KYB fork
Industry-leading, fully adjustable KYB spring-type forks now feature tool-free compression adjustment at the top of each fork leg. The speed sensitive damping uses piston speed to control damping force for super-precise handling and a smooth ride, with minimal wasted stroke or abrupt shocks for the rider – all tuned for the demands of off-road racing.
Technical Specification
Colours
Engine
Chassis
Dimensions
| Engine Type | Liquid-cooled, 2-stroke, reed-valve |
| Displacement (cc) | 125.0 |
| Bore x Stroke (mm) | 54.0 x 54.5 |
| Compression Ratio | 7.8 - 10.2 : 1 |
| Lubrication System | Premix |
| Fuel Management | PWK38S |
| Ignition | CDI |
| Starter System | Kick |
| Fuel Tank Capacity (L) | 7 |
| Final Transmission | Chain |
| Transmission | Constant mesh 6-speed |
| Frame Type | Aluminium controlled filled semi double cradle |
| Suspension Front | Telescopic forks, 300mm travel |
| Suspension Rear | Swingarm (link suspension), 315mm travel |
| Brakes Front | Hydraulic single disc, 270mm |
| Brakes Rear | Hydraulic single disc, 240mm |
| Tyres Front | 80/100-21 51M Tube type |
| Tyres Rear | 110/100-18 64M Tube type |
| Length (mm) | 2155 |
| Width (mm) | 825 |
| Height (mm) | 1290 |
| Seat Height (mm) | 970 |
| Wheelbase (mm) | 1455 |
| Ground Clearance (mm) | 355 |
| Wet Weight (kg) | 97 |
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